With Mists of Pandaria it's possible to get all characters from an account
via 'data-determining' the armory using the 'Community Platform API'.
This is possible by matching account-wide achievements (which can produce
a unique account-fingerprint) between different character-datasets.
Prior Mists of Pandaria this was NOT possible!

Blizzard added an option to disable such 'data-determining'-actions, BUT
this option is DISABLED by DEFAULT.
You need to ENABLE "Display Only Character Achievements to Others" with
each character.

This addon simply checks if you have enabled this option. If this option
is disabled this addon automatically enables it and shows a message in
chat.

Please help to make this addon absolete:
Blizzard MUST make this option ENABLED by DEFAULT.